Solved

Delphi Multi thread example

Posted on 2013-05-17
3
1,503 Views
Last Modified: 2013-06-02
Hello,

Let's say I have a procedure called "DoItForALongTime" which runs for 30 seconds.

The user can start it clicking on the Start button.
But after starting the  "DoItForALongTime" procedure, the user should be able to click on the Start button again and again so as many  "DoItForALongTime" procedures can run at the same time (of course with delayed start).

I would like to have a small working Delphi application about this. It doesn't matter what the  "DoItForALongTime" procedure does, only it should last for at least 20 seconds.

I use Delphi 2010.

Thank you very much
0
Comment
Question by:starhu
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
3 Comments
 
LVL 27

Accepted Solution

by:
Sinisa Vuk earned 250 total points
ID: 39174238
I recommend to use TBMDThread. Get it from www.torry.net
OmniThreadLibrary is little complex but good alternative too. Using one of them you can easily set you "long" process as a working job.
0
 
LVL 15

Assisted Solution

by:mikelittlewood
mikelittlewood earned 250 total points
ID: 39189982
I would also take a look at the JVCL open source components.
They have a TJVThread set of components.
0
 
LVL 38

Expert Comment

by:Geert Gruwez
ID: 39190869
you might want to consider your approach
technically
hitting the button adds a todo item to a list
this list is checked by a thread periodically
when a item is on the list, it is removed and a thread is started to do the work
if you want only 1 thread to run at a time, you would let the first thread keep count of how many threads are running or were started > the number of simultaneous threads which can run at the same time is called throttling
0

Featured Post

[Live Webinar] The Cloud Skills Gap

As Cloud technologies come of age, business leaders grapple with the impact it has on their team's skills and the gap associated with the use of a cloud platform.

Join experts from 451 Research and Concerto Cloud Services on July 27th where we will examine fact and fiction.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article explains how to create forms/units independent of other forms/units object names in a delphi project. Have you ever created a form for user input in a Delphi project and then had the need to have that same form in a other Delphi proj…
In this tutorial I will show you how to use the Windows Speech API in Delphi. I will only cover basic functions such as text to speech and controlling the speed of the speech. SAPI Installation First you need to install the SAPI type library, th…
Michael from AdRem Software outlines event notifications and Automatic Corrective Actions in network monitoring. Automatic Corrective Actions are scripts, which can automatically run upon discovery of a certain undesirable condition in your network.…
If you’ve ever visited a web page and noticed a cool font that you really liked the look of, but couldn’t figure out which font it was so that you could use it for your own work, then this video is for you! In this Micro Tutorial, you'll learn yo…
Suggested Courses
Course of the Month6 days, 18 hours left to enroll

623 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question